'99 Boxster Running Lean
 

I have error codes (P1126, P0410, P1411, P1124, P0130, P1115, P1119, P1319, P1318, P1316, P1317, P1314). I bought the car from a used dealership where the car had a clean title and a smog certificate...a week after I purchased it, I got the check engine light (CEL). I have replaced one of the O2 sensors (still tripping), I have replaced the MAF (still tripping), and I have replaced the secondary air pump (still tripping). I believe the problem to be deeper. Any thoughts/ideas/comments/suggestions???

Thanks,